Power can be thought of as the percentage of the distribution of means, centered around the sample mean, that falls:
A) outside of the null hypothesized distribution.
B) below the mean of the null hypothesized distribution.
C) above two standard deviations from the sample mean.
D) within the critical cutoff regions, where the null hypothesis can be rejected.

Question

Quizplus · Accepted Answer

Power is the probability of correctly rejecting the null hypothesis when it is false. This occurs when the sample mean falls within the critical cutoff regions, where the null hypothesis can be rejected. Therefore, D is the best choice. Choices A, B, and C do not accurately describe power.

Power Can Be Thought of as the Percentage of the Distribution